Results 41 to 50 of about 1,026,932 (240)
A new characterization of a proper type B semigroup
Open Mathematics, 2020 In this paper, we develop the elementary theory of inverse semigroups to the cases of type B semigroups. The main aim of this paper is to study proper type B semigroups. We introduce first the concept of a left admissible triple.
Li Chunhua, Pei Zhi, Xu Baogen
doaj +1 more source
Closed inverse subsemigroups of graph inverse semigroups [PDF]
, 2016 As part of his study of representations of the polycylic monoids, Lawson described all the closed inverse submonoids of a polycyclic monoid Pn and classified them up to conjugacy.
Amal S. Alali, N. D. Gilbert
semanticscholar +1 more source
Inverse semigroups associated with labelled spaces and their tight spectra [PDF]
, 2015 The notion of a labelled space was introduced by Bates and Pask in generalizing certain classes of C*-algebras. Motivated by Exel’s work on inverse semigroups and combinatorial C*-algebras, we associate each weakly left resolving labelled space with an ...
Giuliano Boava, G. G. Castro, F. Mortari
semanticscholar +1 more source
Domain theory and mirror properties in inverse semigroups [PDF]
, 2012 Inverse semigroups are a class of semigroups whose structure induces a compatible partial order. This partial order is examined so as to establish mirror properties between an inverse semigroup and the semilattice of its idempotent elements, such as ...
Poncet, Paul
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Nuclearity of semigroup C*-algebras and the connection to amenability [PDF]
, 2012 We study C*-algebras associated with subsemigroups of groups. For a large class of such semigroups including positive cones in quasi-lattice ordered groups and left Ore semigroups, we describe the corresponding semigroup C*-algebras as C*-algebras of ...
Li, Xin
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Amenability and geometry of semigroups [PDF]
, 2017 We study the connection between amenability, Følner conditions and the geometry of finitely generated semigroups. Using results of Klawe, we show that within an extremely broad class of semigroups (encompassing all groups, left cancellative semigroups ...
Gray, Robert, Kambites, Mark
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Inverse semigroups associated to subshifts [PDF]
, 2015 The dynamics of a one-sided subshift $\mathsf{X}$ can be modeled by a set of partially defined bijections. From this data we define an inverse semigroup $\mathcal{S}_{\mathsf{X}}$ and show that it has many interesting properties.
Charles Starling
semanticscholar +1 more source
Von Neumann Algebras and Extensions of Inverse Semigroups [PDF]
Proceedings of the Edinburgh Mathematical Society, 2014 In the 1970s, Feldman and Moore classified separably acting von Neumann algebras containing Cartan maximal abelian self-adjoint subalgebras (MASAs) using measured equivalence relations and 2-cocycles on such equivalence relations. In this paper we give a
Allan P. Donsig +2 more
semanticscholar +1 more source
On countably compact 0-simple topological inverse semigroups
, 2008 We describe the structure of 0-simple countably compact topological inverse semigroups and the structure of congruence-free countably compact topological inverse ...
Gutik, Oleg, Repovš, Dušan
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Coverages on inverse semigroups [PDF]
Semigroup Forum, 2020 First we give a definition of a coverage on a inverse semigroup that is weaker than the one gave by a Lawson and Lenz and that generalizes the definition of a coverage on a semilattice given by Johnstone. Given such a coverage, we prove that there exists a pseudogroup that is universal in the sense that it transforms cover-to-join idempotent-pure maps ...
openaire +3 more sources